That 80/20 and linear bearing is pretty slick compared to this contraption that my lathe came with,as it was set up for cue repair when I bought it used.
It's overbuilt for the purpose,but I don't have to change collets with it either.
I just let the shaft settle in where it wants,pull back on it until it snugs itself and adjust the position of the base in relation to the back of the lathe,where it's weight keeps it place. The only time I need to adjust the height of the bearing is when I take the lathe out of the shop to go do a tournament,and have to tweak it a little to compensate for it being on a different table than usual. The Delrin collet it came with can also be used in the steady rest for my Cuesmith lathe as well. This collet is only removed if I need it on the Cuesmith,or when I need to retip a one piece house cue.
The lathe itself is now bolted to 2 pieces of 12" long 1"x3" 80/20 using the holes drilled into the casting for the rubber feet,giving me a much wider footprint than stock,and still use the rubber feet under the 80/20. Tommy D.